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Daytime urban heat island effect in high-rise and high-density residential developments in Hong Kong

journal contribution
posted on 2010-01-04, 15:13 authored by Renganathan Giridharan, S. Ganesan, S.S.Y. Lau
Nearly 60% of electrical energy use in Hong Kong is for space conditioning during summer months. The paper investigates the impact of design-related variables on outdoor micro level daytime heat island effect in residential developments in HongKong. The paper hypothesizes that the differences in outdoor temperatures within and between residential developments can be explained by the impact of design-related variables on the overall environment. Case studies of three large housing estates reveal urban heat island effect (UHI) in the order of 1.5 ◦C within an estate, and 1.0 ◦C between estates. The results indicate that energy efficient designs can be achieved by manipulating surface albedo, sky view factor and total height to floor area ratio (building massing) while maximizing cross ventilation.

History

School

  • Architecture, Building and Civil Engineering

Citation

GIRIDHARAN, R., GANESAN, S. and LAU, S.S.Y., 2004. Daytime urban heat island effect in high-rise and high-density residential developments in Hong Kong. Energy and Buildings, 36 (6), pp.525–534.

Publisher

© Elsevier

Version

  • NA (Not Applicable or Unknown)

Publication date

2004

Notes

This article is closed access. It was published in the journal, Energy and Buildings [© Elsevier] and the definitive version is available at: www.elsevier.com\locate\enbuild

ISSN

0378-7788

Language

  • en